I performed an strace while running the build. Once it starts looking for
libFoundation.so it only searches the build location inside the swift
directory, but none of the provided -Xlinker paths.
10795 execve("<somedir>/swiftpm-linux-x86_64/debug/swift-build-stage1",
["<somedir>"..., "-Xlinker", "-rpath", "-Xlinker",
"$ORIGIN/../lib/swift/linux", "-Xlinker", "-L", "-Xlinker", "<somedir>"...,
"-Xlinker", "-rpath", "-Xlinker", "<somedir>"..., "-Xswiftc", "-I<somedir>"...,
"-Xswiftc", ...], [/* 72 vars */]) = 0
(snip 58 lines)
10795
open("<somedir>/swift-linux-x86_64/lib/swift/linux/x86_64/libFoundation.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
10795 open("<somedir>/swift-linux-x86_64/lib/swift/linux/libFoundation.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
10795 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
10795 open("/lib/x86_64-linux-gnu/tls/x86_64/libFoundation.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
10795 stat("/lib/x86_64-linux-gnu/tls/x86_64", 0x7ffc521054a0) = -1 ENOENT (No
such file or directory)
10795 open("/lib/x86_64-linux-gnu/tls/libFoundation.so", O_RDONLY|O_CLOEXEC) =
-1 ENOENT (No such file or directory)
10795 stat("/lib/x86_64-linux-gnu/tls", 0x7ffc521054a0) = -1 ENOENT (No such
file or directory)
10795 open("/lib/x86_64-linux-gnu/x86_64/libFoundation.so", O_RDONLY|O_CLOEXEC)
= -1 ENOENT (No such file or directory)
10795 stat("/lib/x86_64-linux-gnu/x86_64", 0x7ffc521054a0) = -1 ENOENT (No such
file or directory)
10795 open("/lib/x86_64-linux-gnu/libFoundation.so", O_RDONLY|O_CLOEXEC) = -1
ENOENT (No such file or directory)
10795 stat("/lib/x86_64-linux-gnu", {st_mode=S_IFDIR|0755, st_size=16384, ...})
= 0
10795 open("/usr/lib/x86_64-linux-gnu/tls/x86_64/libFoundation.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
10795 stat("/usr/lib/x86_64-linux-gnu/tls/x86_64", 0x7ffc521054a0) = -1 ENOENT
(No such file or directory)
10795 open("/usr/lib/x86_64-linux-gnu/tls/libFoundation.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
10795 stat("/usr/lib/x86_64-linux-gnu/tls", 0x7ffc521054a0) = -1 ENOENT (No
such file or directory)
10795 open("/usr/lib/x86_64-linux-gnu/x86_64/libFoundation.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
10795 stat("/usr/lib/x86_64-linux-gnu/x86_64", 0x7ffc521054a0) = -1 ENOENT (No
such file or directory)
10795 open("/usr/lib/x86_64-linux-gnu/libFoundation.so", O_RDONLY|O_CLOEXEC) =
-1 ENOENT (No such file or directory)
10795 stat("/usr/lib/x86_64-linux-gnu", {st_mode=S_IFDIR|0755, st_size=69632,
...}) = 0
10795 open("/lib/tls/x86_64/libFoundation.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT
(No such file or directory)
10795 stat("/lib/tls/x86_64", 0x7ffc521054a0) = -1 ENOENT (No such file or
directory)
10795 open("/lib/tls/libFoundation.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No
such file or directory)
10795 stat("/lib/tls", 0x7ffc521054a0) = -1 ENOENT (No such file or directory)
10795 open("/lib/x86_64/libFoundation.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No
such file or directory)
10795 stat("/lib/x86_64", 0x7ffc521054a0) = -1 ENOENT (No such file or
directory)
10795 open("/lib/libFoundation.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such
file or directory)
10795 stat("/lib", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
10795 open("/usr/lib/tls/x86_64/libFoundation.so", O_RDONLY|O_CLOEXEC) = -1
ENOENT (No such file or directory)
10795 stat("/usr/lib/tls/x86_64", 0x7ffc521054a0) = -1 ENOENT (No such file or
directory)
10795 open("/usr/lib/tls/libFoundation.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No
such file or directory)
10795 stat("/usr/lib/tls", 0x7ffc521054a0) = -1 ENOENT (No such file or
directory)
10795 open("/usr/lib/x86_64/libFoundation.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT
(No such file or directory)
10795 stat("/usr/lib/x86_64", 0x7ffc521054a0) = -1 ENOENT (No such file or
directory)
10795 open("/usr/lib/libFoundation.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No
such file or directory)
10795 stat("/usr/lib", {st_mode=S_IFDIR|0755, st_size=20480, ...}) = 0
10795 writev(2, [{"/media/sf_Developer/apple/build/"..., 97}, {": ", 2},
{"error while loading shared libra"..., 36}, {": ", 2}, {"libFoundation.so",
16}, {": ", 2}, {"cannot open shared object file", 30}, {": ", 2}, {"No such
file or directory", 25}, {"\n", 1}], 10) = 213
10795 exit_group(127) = ?
10795 +++ exited with 127 +++
-Bouke
> On 5 mei 2016, at 12:22, Bouke Haarsma <bo...@haarsma.eu> wrote:
>
> The build directory of SwiftPM looks like this when stage2 is build;
>
> <somedir>/swiftpm-linux-x86_64/
> ├── .bootstrap
> │ ├── bin
> │ │ ├── swift-build
> │ │ └── swift-test
> (...)
> │ ├── lib
> (...)
> │ │ ├── swift
> │ │ │ ├── linux
> │ │ │ │ ├── libFoundation.so ->
> <somedir>/foundation-linux-x86_64/Foundation/libFoundation.so
> │ │ │ │ └── x86_64
> │ │ │ │ ├── Foundation.swiftdoc ->
> <somedir>/foundation-linux-x86_64/Foundation/Foundation.swiftdoc
> │ │ │ │ └── Foundation.swiftmodule ->
> <somedir>/foundation-linux-x86_64/Foundation/Foundation.swiftmodule
> │ │ │ └── pm
> │ │ │ ├── libPackageDescription.so
> │ │ │ └── PackageDescription.swiftmodule
> (...)
> │ ├── modules
> (...)
> │ │ ├── CoreFoundation ->
> <somedir>/foundation-linux-x86_64/Foundation/usr/lib/swift/CoreFoundation
> │ │ ├── Foundation.swiftdoc ->
> <somedir>/foundation-linux-x86_64/Foundation/Foundation.swiftdoc
> │ │ ├── Foundation.swiftmodule ->
> <somedir>/foundation-linux-x86_64/Foundation/Foundation.swiftmodule
> (...)
> ├── debug
> │ ├── swift-build-stage1 ->
> <somedir>/swiftpm-linux-x86_64/.bootstrap/bin/swift-build
> │ ├── swift-build-tool ->
> <somedir>/llbuild-linux-x86_64/bin/swift-build-tool
> │ └── swiftc -> <somedir>/swift-linux-x86_64/bin/swiftc
> └── lib -> <somedir>/swiftpm-linux-x86_64/.bootstrap/lib
>
> So I’m not sure what else is missing here?
>
> Also, the correct path for Foundation is already being passed to the build
> command using -Xlinker arguments, why doesn’t that work as well?
>
> <somedir>/swiftpm-linux-x86_64/debug/swift-build-stage1 \
> -Xlinker -rpath -Xlinker $ORIGIN/../lib/swift/linux \
> -Xlinker -L -Xlinker <somedir>/foundation-linux-x86_64/Foundation \
> -Xlinker -rpath -Xlinker <somedir>/foundation-linux-x86_64/Foundation \
> -Xswiftc -I<somedir>/foundation-linux-x86_64/Foundation \
> -Xswiftc -I<somedir>/foundation-linux-x86_64/Foundation/usr/lib/swift
>
> -Bouke
>
>> On 5 mei 2016, at 11:17, Daniel Dunbar <daniel_dun...@apple.com
>> <mailto:daniel_dun...@apple.com>> wrote:
>>
>> What you will need to do to make this work is to get the "fake toolchain" to
>> look like how an actual toolchain looks on disk (e.g., libFoundation in the
>> same relative position, in `<something>/../lib/swift/linux`), presumably
>> using a symlink. The special rpath is what is causing the built swift-build
>> (in this case the stage1 swift-build) to look in that directory for its
>> libraries. If libFoundation.so is there, then that should suffice for it to
>> be found and loaded.
>>
>> - Daniel
>>
>>> On May 5, 2016, at 2:04 AM, Bouke Haarsma via swift-dev
>>> <swift-dev@swift.org <mailto:swift-dev@swift.org>> wrote:
>>>
>>> For SwiftPM, I'm looking to replace some POSIX calls with Foundation. NSTask
>>> and NSFileManager amongst others. I've created a few PRs already for this,
>>> see
>>> [1]. However before these can be merged, the build scripts need to be
>>> adjusted
>>> to allow SwiftPM to build against Foundation.
>>>
>>> There has already been some pointers posted in the comments on one of these
>>> PRs,
>>> see [2]. I tried to implement those, see my changes to the swift
>>> build-script in
>>> [3] and the "fake toolchain" in SwiftPM in [4]. However SwiftPM builds
>>> stage1;
>>> stage2 is still failing. I don't know how to proceed; I've only scratched
>>> the
>>> surface regarding build systems and the many tools used to build the
>>> various
>>> swift parts. I would really love some help going forward.
>>>
>>> $ swift/utils/build-script -R --swiftpm
>>> (...)
>>> --- bootstrap: note: building self-hosted 'swift-build': env
>>> SWIFT_EXEC=/media/sf_Developer/apple/build/Ninja-ReleaseAssert/swiftpm-linux-x86_64/debug/swiftc
>>>
>>> SWIFT_BUILD_PATH=/media/sf_Developer/apple/build/Ninja-ReleaseAssert/swiftpm-linux-x86_64
>>>
>>> /media/sf_Developer/apple/build/Ninja-ReleaseAssert/swiftpm-linux-x86_64/debug/swift-build-stage1
>>> -Xlinker -rpath -Xlinker $ORIGIN/../lib/swift/linux -Xlinker -L -Xlinker
>>> /media/sf_Developer/apple/build/Ninja-ReleaseAssert/foundation-linux-x86_64/Foundation
>>> -Xlinker -rpath -Xlinker
>>> /media/sf_Developer/apple/build/Ninja-ReleaseAssert/foundation-linux-x86_64/Foundation
>>> -Xswiftc
>>> -I/media/sf_Developer/apple/build/Ninja-ReleaseAssert/foundation-linux-x86_64/Foundation
>>> -Xswiftc
>>> -I/media/sf_Developer/apple/build/Ninja-ReleaseAssert/foundation-linux-x86_64/Foundation/usr/lib/swift
>>>
>>> /media/sf_Developer/apple/build/Ninja-ReleaseAssert/swiftpm-linux-x86_64/debug/swift-build-stage1:
>>> error while loading shared libraries: libFoundation.so: cannot open shared
>>> object file: No such file or directory
>>> --- bootstrap: error: build failed with exit status 127
>>>
>>> - Bouke
>>>
>>> [1]: https://github.com/apple/swift-package-manager/pulls/Bouke
>>> <https://github.com/apple/swift-package-manager/pulls/Bouke>
>>> [2]:
>>> https://github.com/apple/swift-package-manager/pull/292#issuecomment-216508823
>>>
>>> <https://github.com/apple/swift-package-manager/pull/292#issuecomment-216508823>
>>> [3]:
>>> https://github.com/apple/swift/compare/master...Bouke:swiftpm-foundation
>>> <https://github.com/apple/swift/compare/master...Bouke:swiftpm-foundation>
>>> [4]:
>>> https://github.com/apple/swift-package-manager/compare/ef491db...Bouke:swiftpm-foundation
>>>
>>> <https://github.com/apple/swift-package-manager/compare/ef491db...Bouke:swiftpm-foundation>_______________________________________________
>>> swift-dev mailing list
>>> swift-dev@swift.org <mailto:swift-dev@swift.org>
>>> https://lists.swift.org/mailman/listinfo/swift-dev
>>> <https://lists.swift.org/mailman/listinfo/swift-dev>
>
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